Finding the Fourth Proportional to 422.26, 633.23 and 133.62
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Solution
The fourth proportional to 422.26, 633.23 and 133.62 is: 200.38
Step by Step Solution
- Step 1: Write the proportion equation
422.26 : 633.23 = 133.62 : x - Step 2: Convert to fraction form
422.26/633.23 = 133.62/x - Step 3: Cross multiply
422.26x = 633.23 × 133.62 - Step 4: Simplify right side
422.26x = 84,612.19 - Step 5: Solve for x
x = 84,612.19/422.26 - Step 6: Final answer
x = 200.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.